2005 INFINITI FX35 differential

DESCRIPTION FFD-7
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FFD
Revision: 2005 July 2005 FX
DESCRIPTIONPFP:00000
Cross-Sectional ViewADS00197
1. Side retainer 2. Side bearing 3. Differential case
4. Drive gear 5. Pinion mate shaft 6. Pinion mate gear
7. Side gear 8. Side shaft 9. Gear carrier
10. Drive pinion 11. Companion flange 12. Pinion front bearing
13. Pinion rear bearing 14. Extension tube retainer 15. Engine assembly
PDIA0647E

FFD-8
DIFFERENTIAL GEAR OIL
Revision: 2005 July 2005 FX
DIFFERENTIAL GEAR OILPFP:KLD30
Changing Differential Gear OilADS00198
DRAINING
1. Stop engine.
2. Remove drain plug and drain gear oil.
3. Set a gasket on drain plug and install it to final drive assembly and tighten to the specified torque. Refer to FFD-16, "
COMPO-
NENTS (VQ35DE MODELS)" , FFD-18, "COMPONENTS
(VK45DE MODELS)" .
CAUTION:
Do not reuse gasket.
FILLING
1. Remove filler plug. Fill with new gear oil until oil level reaches
the specified level near filler plug mounting hole.
2. After refilling oil, check oil level. Set a gasket to filler plug, then install it to final drive assembly. Refer to FFD-16, "
COMPO-
NENTS (VQ35DE MODELS)" , FFD-18, "COMPONENTS
(VK45DE MODELS)" .
CAUTION:
Do not reuse gasket.
Checking Differential Gear OilADS00199
OIL LEAKAGE AND OIL LEVEL

Make sure that oil is not leaking from final drive assembly or around it.

Check oil level from filler plug mounting hole as shown in the fig-
ure.
CAUTION:
Do not start engine while checking oil level.

Set a gasket on filler plug and install it on final drive assembly.
Refer to FFD-16, "
COMPONENTS (VQ35DE MODELS)" , FFD-
18, "COMPONENTS (VK45DE MODELS)" .
CAUTION:
Do not reuse gasket.
PDIA0648E
Oil grade and Viscosity:
Refer to MA-12, "
Fluids and Lubricants" .
Oil capacity:
Approx. 0.65 (1-3/8 US pt, 1-1/8 Imp pt)
PDIA0649E
PDIA0649E

FRONT FINAL DRIVE ASSEMBLY FFD-13
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FFD
Revision: 2005 July 2005 FX

When installing breather hoses, refer to the figure.
CAUTION:
Make sure there are no pinched or restricted areas on the
breather hose caused by bending or winding when install-
ing it.

Install breather connector as shown in the figure.

Seat the breather tube bracket end to the machined face of gear
carrier boss.

When oil leaks while removing final drive assembly, check oil
level after the installation. Refer to FFD-8, "
Checking Differential
Gear Oil" .
PDIA0660E
Angle “A”: 0 - 30°
PDIA0821E
PDIA0823E

FRONT FINAL DRIVE ASSEMBLY FFD-15
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Revision: 2005 July 2005 FX

When installing breather hoses, refer to the figure.
CAUTION:
Make sure there are no pinched or restricted areas on the
breather hose caused by bending or winding when install-
ing it.

Install breather connector as shown in the figure.

When oil leaks while removing final drive assembly, check oil
level after the installation. Refer to FFD-8, "
Checking Differential
Gear Oil" .
PDIA0661E
Angle “A”: 22.5°
“B”: 22.5 - 45 °
PDIA0822E

FFD-16
FRONT FINAL DRIVE ASSEMBLY
Revision: 2005 July 2005 FX
Disassembly and AssemblyADS0019Y
COMPONENTS (VQ35DE MODELS)
1. Drive pinion lock nut 2. Companion flange 3. Front oil seal
4. Pinion front bearing 5. Drive pinion bearing adjusting washer 6. Drive pinion adjusting washer
7. Gear carrier 8. Pinion rear bearing 9. Pinion height adjusting washer
10. Drive pinion 11. Drive gear 12. Side oil seal (right side)
13. Side retainer 14. O-ring 15. Side bearing adjusting shim
16. Side bearing 17. Differential case 18. Breather connector
19. Dowel pin 20. Filler plug 21. Drain plug
22. Gasket 23. Carrier cover 24. Gear oil defence
25. Side gear thrust washer 26. Side gear 27. Circular clip
28. Pinion mate thrust washer 29. Pinion mate gear 30. Pinion mate shaft
31. Lock pin 32. Side bearing adjusting washer 33. Side oil seal (left side)
PDIA0662E

FFD-18
FRONT FINAL DRIVE ASSEMBLY
Revision: 2005 July 2005 FX
COMPONENTS (VK45DE MODELS)
1. Drive pinion lock nut 2. Companion flange 3. Front oil seal
4. Pinion front bearing 5. Drive pinion bearing adjusting washer 6. Drive pinion adjusting washer
7. Gear carrier 8. Pinion rear bearing 9. Pinion height adjusting washer
10. Drive pinion 11. Drive gear 12. Side oil seal (right side)
13. Side retainer 14. O-ring 15. Side bearing adjusting shim
16. Side bearing 17. Differential case 18. Breather connector
19. Dowel pin 20. Filler plug 21. Drain plug
22. Gasket 23. Carrier cover 24. Gear oil defence
25. Side gear thrust washer 26. Side gear 27. Circular clip
28. Pinion mate thrust washer 29. Pinion mate gear 30. Pinion mate shaft
31. Lock pin 32. Side bearing adjusting washer 33. Side oil seal (left side)
PDIA0663E

FFD-20
FRONT FINAL DRIVE ASSEMBLY
Revision: 2005 July 2005 FX
ASSEMBLY INSPECTION AND ADJUSTMENT

Before inspection and adjustment, drain gear oil.
Total Preload Torque
1. Rotate drive pinion back and forth 2 to 3 times to check for unusual noise and rotation malfunction.
2. Rotate drive pinion at least 20 times to check for smooth opera- tion of the bearing.
3. Measure total preload with preload gauge.
NOTE:
Total preload torque = Pinion bearing torque + Side bearing
torque

If measured value is out of the specification, disassemble it to
check and adjust each part. Adjust the pinion bearing preload and side bearing preload.
Adjust the pinion bearing preload first, then adjust the side bearing preload.
Drive Gear Runout
1. Remove carrier cover. Refer to FFD-24, "Differential Assembly" .
2. Fit a dial indicator to the drive gear back face.
3. Rotate the drive gear to measure runout.

If the runout is outside of the repair limit, check drive gear
assembly condition; foreign material may be caught between
drive gear and differential case, or differential case or drive gear
may be deformed, etc.
CAUTION:
Replace drive gear and drive pinion gear as a set. Tool number : ST3127S000 (J-25765-A)
Total preload torque (With oil seal): 1.56 - 2.65 N·m (0.16 - 0.27 kg-m, 14 - 23 in-lb)
SDIA1649E
When the preload torque is largeOn pinion bearings: Decrease the drive pinion bearing adjusting washer and drive pinion adjusting washer thickness. Refer to FFD-40, "
Drive Pinion Bearing
Adjusting Washer" and FFD-40, "Drive Pinion Adjusting Washer" .
On side bearings: Increase the side bearing adjusting shim thickness. Refer to FFD-40,
"Side Bearing Adjusting Shim" .
When the preload torque is small On pinion bearings: Increase the drive pinion bearing adjusting washer and drive pinion adjusting washer thickness. Refer to FFD-40, "
Drive Pinion Bearing
Adjusting Washer" and FFD-40, "Drive Pinion Adjusting Washer" .
On side bearings: Decrease the side bearing adjusting shim thickness. Refer to FFD-40,
"Side Bearing Adjusting Shim" .
Runout limit: 0.05 mm (0.0020 in) or less
SPD886

FRONT FINAL DRIVE ASSEMBLY FFD-21
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Revision: 2005 July 2005 FX
Tooth Contact
1. Remove carrier cover. Refer to FFD-24, "Differential Assembly" .
2. Apply red lead to drive gear. CAUTION:
Apply red lead to both the faces of 3 to 4 gears at 4 loca-
tions evenly spaced on drive gear.
3. Rotate drive gear back and forth several times, check drive pin- ion gear to drive gear tooth contact.
CAUTION:
Check tooth contact on drive side and reverse side.
SPD357
SDIA0570E